Sand filter parameter selection and design

Filter the source water treatment equipment specializing in the production of quartz sand filter, sand filter tank, is specializing in the production of sand filter manufacturer. Below to introduce relevant knowledge of sand filter, believe to choice and use the help.

sand filter is built in quartz sand filter material, to the sediment in the water, organic matter, such as ion impurities for interception, by backwashing and are washing will be trapped and impurities rinse off, then recycled, with simple operation, low cost, can be repeated use, sewage ability and other characteristics, widely used in water treatment. Sand filter is pressure filters, so must achieve 3 - feed water pressure 4 kg so that he can filter out of the water flow. Filter material selection requirements, the sand filter layer diameter 0. 5 - 1. 2 mm, to ensure the filtering effect, have 1 - pad 2 mm and 3 - 4 mm, mainly is to ensure that the water through, not only reduce the water resistance, but also play a filtering effect.

a, sand filter design techniques of quartz sand filter tank diameter design according to the process flow and design to determine the flow velocity, and general design flow at eight 15 m/h, if the water of high content of suspended solids, the design flow rate is relatively slowly, so long run, lower frequency of cleaning, filtering effect is good, such as sewage treatment, water reuse, etc. If the water quality can also originally, such as swimming pool circulating water treatment, water treatment, clean the water processing, the design flow rate can hurry up appropriately, so that the diameter of the quartz sand filter tank, reduced the cost of investment.

2, sand filter material selection skills

quartz sand filter material of tank, generally speaking, there are 304 stainless steel, carbon steel material, general industrial wastewater using carbon steel material, lining rubber processing, and reduce the cost and make the filter tank is durable, and food and water, tap water demanding, such as average of 304 stainless steel material, we generally do not recommend using glass fiber reinforced plastic materials, mainly glass fiber reinforced plastic in and out of the mouth, and it is not convenient for installation, refueling more inconvenient, and easy to aging damage, basic is a one-time use.

quartz sand, sand filter filling method for corrosion protection filter jars with different particle size of filter material in the body, from the bottom by size compaction. When water flow to the downstream filter layer, the water containing suspended material flow into the upper form tiny pore of filter material, adsorption and mechanical choke effect, by the filter material surface layer interception. At the same time, these trapped between the suspended matter happen again 'overlap' and 'bridge' role, forming a thin film in the surface of filter, filtering continue to happen. This is known as filter material surface membrane filtration effect. This kind of membrane filtration effect not only the surface, and when the water flow into the middle filter material layer is produced the intercept. With the surface of membrane filtration effect, among the intercept action is called osmosis filtration effect.

4, sand filter, use the

sand filter has simple structure, can be fully automatic operation without modes, strong processing capacity, fewer recoil, high filtration efficiency, carrying capacity is strong, the operation and maintenance is convenient wait for a characteristic, it can be widely used in electricity, electronics, beverages, water, oil, chemical, metallurgical, textile, papermaking, food, swimming pool, municipal engineering, etc. Various kinds of process water and domestic water, water circulation and the pretreatment of the wastewater, can meet the needs of the industry of the liquid filtration, effectively improve water quality.

5, selection of sand filter parameter models

Sc03 -

Sc03 - 300

Sc03 - 400

Sc03 - 500

Sc03 - 600

Sc03 - 700 800

specifications

Φ 300 x 1600

Φ 400 x 1600

Φ 500 x 1650

Φ 600 x 1900

Φ 700 x 2200

Φ 800 x 2400

flow

0. 5 ~ 1 m3 / h

1 ~ 1。 5 m3 / h

1。 5 ~ 2 m3 / h

2 ~ 4 m3 / h

4 ~ 6 m3 / h

6 ~ 8 m3 / h

型号

Sc03 -

Sc03 - 900

Sc03 - 1000

Sc03 - 1200

Sc03 - 1400

Sc03 - 1500 1600

规格

Φ900×2400

Φ1000×2500

Φ1200×2700

Φ1400×2800

Φ1500×2900

Φ1600×2900

流量

7 ~ 9 m3 / h

8 ~ 11 m3 / h

10 ~ 14 m3 / h

12 ~ 18 m3 / h

14 ~ 22 m3 / h

18 ~ 25 m3 / h

型号

Sc03 -

Sc03 - 1800

Sc03 - 2000

Sc03 - 2200

Sc03 - 2400

Sc03 - 2500 2600

规格

Φ1800×3200

Φ2000×3300

Φ2200×3500

Φ2400×3500

Φ2500×3600

Φ2600×3700

流量

24 ~ 32 m3 / h

28 ~ 40 m3 / h

35 ~ 45 m3 / h

40 ~ 55 m3 / h

45 ~ 60 m3 / h

55 ~ 65 m3 / h

型号

Sc03 -

Sc03 - 2700

Sc03 - 2800

Sc03 - 3000

Sc03 - 3200

Sc03 - 3400 3500

规格

Φ2700×3750

Φ2800×3800

Φ3000×3850

Φ3200×3950

Φ3400×4100

Φ3500×4300

流量

60 ~ 72 m3 / h

68 ~ 85 m3 / h

75 ~ 95 m3 / h

90 ~ 110 m3 / h

100 ~ 125 m3 / h

110 ~ 140 m3 / h